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https://issues.apache.org/jira/browse/OPENJPA-2534?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14273708#comment-14273708
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Mark Struberg commented on OPENJPA-2534:
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I've created OPENJPA-2558 to handle the BooleanRepresentation in a separate
report.
> A boolean is not converted correct when using the hint 'UseLiteralInSQL'.
> -------------------------------------------------------------------------
>
> Key: OPENJPA-2534
> URL: https://issues.apache.org/jira/browse/OPENJPA-2534
> Project: OpenJPA
> Issue Type: Bug
> Components: sql
> Affects Versions: 2.1.2, 2.2.1.1, 2.2.3, 2.3.1, 2.4.0
> Reporter: Heath Thomann
> Assignee: Mark Struberg
> Priority: Critical
> Attachments: OPENJPA-2534.patch, OPENJPA-2534.patch
>
>
> The hint, 'openjpa.hint.UseLiteralInSQL', is not properly converting a
> boolean to an int. To illustrate this, lets take this entity:
> public class MyEntity implements Serializable {
> @Id
> private Integer pk;
> private boolean flag;
> ..........
> With this entity, lets take this test:
> Query q = em.createQuery("SELECT f FROM MyEntity f WHERE f.flag = true");
> q.setHint("openjpa.hint.UseLiteralInSQL", "false"); //false is the default
> q.getResultList();
> With this code, the following SQL will be generated:
> SELECT t0.pk, t0.code, t0.code2, t0.flag FROM MyEntity t0 WHERE (t0.flag = ?)
> [params=(int) 1]
> Next, lets take this code:
> Query q = em.createQuery("SELECT f FROM MyEntity f WHERE f.flag = true");
> q.setHint("openjpa.hint.UseLiteralInSQL", "true");
> q.getResultList();
> With this code, the following SQL will be generated:
> SELECT t0.pk, t0.code, t0.code2, t0.flag FROM MyEntity t0 WHERE (t0.flag =
> true)
> However, in the latter case where UseLiteralInSQL=true, the following SQL
> should be generated:
> SELECT t0.pk, t0.code, t0.code2, t0.flag FROM MyEntity t0 WHERE (t0.flag =
> '1')
> Thanks,
> Heath
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